an electronic device for reading printed barcodes. Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating optical impulses into electrical ones. Additionally, nearly all barcode readers contain decoder circuitry that analyses the barcode's image data provided by the sensor and sending the barcode's content to the scanner's output port.
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Definition/Theory (Class Summary)
an electronic device for reading printed barcodes . Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating optical impulses into electrical ones. Additionally, nearly all barcode readers contain decoder circuitry that analyses the barcode's image data provided by the sensor and sending the barcode's content to the scanner's output port.
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Exam questions or things to think about Social and Ethical Issues
Class Exercises
Examples or Activities